VT100 signals on E10, the Video Shift Register (74S299). The blue signal is BV4 DOT CLK and the yellow signal is BV4 VSR LOAD H.
VT100 signals on E10, the Video Shift Register (74S299). The blue signal is BV4 DOT CLK and the yellow signal is BV4 VSR LOAD H.
Rob's Old Computers 
